字符串类型
1 | let one: String = "one" |
数字类型
1 | let infinityNumber: number = Infinity //无穷大 |
布尔类型
1 | let bool1: Boolean = new Boolean(1) |
空值类型
1 | let u: void = undefined |
null和undefined类型
1 | let u1: undefined = undefined |
any类型和unknown类型
1 | let any1: any = 1 //any类型不限制数据类型 |